The Padres, who are currently carrying two long relievers -- Roach and Tim Stauffer -- haven't needed Roach lately, as the starting pitchers have generally done a better job of working deeper into the games in the second week of the season.
Roach might be seen before too long, as the Padres are in a stretch of 20 consecutive days without a day off. The team won't have a scheduled off-day until May 1.
"That's a function of the types of games we're playing. His innings in the first part of the season have not really been required. But he'll get in there. You can't just pitch with just 10, 11 guys."
The Padres have six more games at home, counting Tuesday, before embarking on a 10-game road trip to Milwaukee, Washington and San Francisco.
"This stretch we're in now, we're going to use all 12 guys," Black said.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.